1356242 _ 脱日修正替換頁 ___I 修正本 九、發明說明： v 【發明所屬之技術領域】 本發明涉及一種具有配置在發光組件中的半導體光源 之背光照明裝置。此外，本發明涉及一種發光裝置，其具 有上述之背光照明裝置。 * 本申請案主張德國專利申請案10 2005 042 066.4-54之 - 優先權，其已揭示的整個內容在此一倂作爲參考 【先前技術】 目前爲止，主要是使用冷陰極螢光燈管以對平面進行照 明，各種平面例如可爲液晶顯示器（LCD)。發光燈管主要發 出白光，但需要較大的空間和電流。 近幾年來，在對LCD-或TFT-螢幕進行背光照明時使用 半導體光源時已得更爲重要。於此，一種面需要藉由半導 體光源來均勻地進行背光照明。 就即將照明的螢幕上一種均勻的顏色再生而言，不同顏 色之半導體光源所發出的光特別需要達成一種均勻的顏色 混合作用。只有使用不同顏色之半導體光源時半導體光源 之各別的輻射才需要一種均勻的顏色混合作用。此種均勻 ； 的顏色混合可藉由各別的光源相對於即將進行背光照明的 ； 面積相隔一種大的距離來達成。此外，可在即將進行背光 照明之面積和各光源之間施加多種漫射用的材料。 當然，距離增大會造成不期望之大的構造高度。在即將 進行背光照明之面積和各光源之間所設置的漫射器典型上 會使發光功率造成巨大的損耗。此種背光照明之總效率及 1356242 _ 叫？月％日修正替換頁 -— __I 修正本 • 其可使用性因此會受到影響。此處所謂背影照明之總效率 . 是指發光功率對所耗費之能量之比。 WO 2004/031844 A1中已揭示一種具有半導體光源之背 光照明裝置。該文件中多個不同顏色之半導體光源組合成 多個發光組且這些發光組以直角形的網目方式配置在相同 ' 的方位中。在使用該光源配置時，不易產生一種均勻的混 - 合顏色。由於各組的方位都相同，則即將進行背光照明的 面積內部的區域（主要是在邊緣上）具有明顯的顏色差異 性。 由半導體光源所構成的組之顏色混合另外會受到以下 的情況所影響’即：各別的半導體光源在發射時具有不同 的優先方向。類似的情況在使用多晶片封裝時會發生，即， 所使用的發光二極體單元包含多個不同顏色之半導體晶片 時會發生類似的情況。 第5圖是背光照明裝置1之細部圖。虛線表示此背光照 明裝置1之邊緣3。此處，在所示的一個邊緣上配置四個 發光組。各別的發光組以相同的方式構成。各發光組特別 是包含三個不同發射光譜之半導體晶片，這些晶片配置成 : 相同的形式。本例子中各晶片是與一種多晶片封裝有關， ； 就像其由歐斯朗公司以名稱Multitopled所大量銷售者一 樣。本發明的發光組當然不限於上述之多晶片封裝而是包 含全部之發出輻射的半導體組件之各種配置方式。 大部份的背光照明裝置中，相同-或相同形式的發光組都 以相同的方位配置在條形的電路板上》平面式的背光照明 1356242 卜請6日修正替換頁 修正本 區由條形的電路板所組成。 在長方形的柵格配置中，相同形式的發光組以相同的方 位而配置著。在此種情況下，一發光組含有一發出輻射之 半導體組件，其包含三個發出輻射之半導體晶片，即，發 出藍光（B)-，發出綠光（G)-，發出紅光（R)之半導體晶片32a， 32b，3 2c。由於相鄰的發光組31a，31b分別具有相同的方 位且一發光組之各別的半導體光源在發射方向中具有各別 的優先方向，則只能有條件地使半導體光源之各別的光譜 達成一種均勻的顏色混合作用。 依據第5圖，相鄰的發光組31a，31b具有相同的方位。 此實施例中，邊緣側沿著垂直的虛線只有發出紅色的半導 體組件2c，2d，2e相鄰接著。這些背光照明區之邊緣上因 此會造成不均勻的顔色效應。 【發明內容】 本發明的目的是在一種背光照明裝置或發光裝置中以 成本有利的方式使顏色混合性獲得改良。 此目的藉由申請專利範圍第1項或第18項之背光照明 裝置或發光裝置來達成。 本發明的背光照明裝置，大致上是背光照明組，包含多 個相同型式的發光組，其中每一發光組具有至少一相鄰的 發光組，其方位不相同。 本發明的設計方式是使不同的半導體光源組合成相同 型式之發光組。例如，這些光源可以是紅綠藍（RGB)-光源。 各發光組當然亦可具有不同的其它顏色》須配置相同形式 1356242 修正本 較佳 相同 所造 光組 光照 不相 源之 不相 種不 組相 配置 是半 等。 同的 不同 發出 至少 _祕日修正替換頁 的發光組，使一面積受到均勻的背光照明。各發光組 是分別以相同的形式來構成。即，每一發光組都具有 配置的相同之半導體光源。因此，不均勻之顏色混合 成之特殊的邊緣效應即不會發生，相同配置的每一發 都具有至少一方位不同的相鄰之發光組。 如果在二個發光組之中心之間的假想路徑與該背 明裝置之任意的第三發光組之包絡線既不接觸也 交，則背光照明裝置之二個發光模組是相鄰的。 當相同形式之相鄰的發光組之相對應的半導體光 中心之間的距離是與相鄰的發光組之中心之間的距離 同之情況下，一發光組須相對於另一發光組來設定一 同的方位。例如，一種不同的方位可藉由”相鄰的發光 對於其主輻射方向而互相旋轉”來達成。 本發明之背光照明裝置之每一發光組具有以相同 方式所形成的多個半導體光源。半導體光源例如可以 導體晶片，有機發光聚合物，各別的LEDs或OLEDs 本發明的發光組亦可藉由多個LEDs組合成一種共 發光組來形成。 依據一較佳的實施形式，至少二個半導體光源提供 的顏色。 依據另一較佳的實施形式，每一發光組具有至少一 紅光的半導體光源，至少一發出綠光的半導體光源和 一發出藍光的半導體光源。 作爲半導體光源用的半導體晶片中，發光組可以是各別 1356242 _ 齡皮月曰修正替換頁 _ ’ 修正本 • 發出輻射之半導體組件，其中每一個半導體組件可具有多 . 個半導體晶片。特別是各發光組可以是一種所謂”多晶片 -LED-封裝”。各發光組是LED組件，其包含多個半導體晶 片。半導體晶片可具有不同的發射光譜，例如，紅，綠， 藍色等光譜。多晶片-封裝例可已由歐斯朗公司以商標名稱 ' 6-lead Multitopleds來大量地銷售。每一封裝例如具有三 ： 個半導體晶片，其分別具有紅，綠，藍發射光譜和六個電 性接觸區。 本發明的另一實施形式的設計方式是使各發光組以規 則的柵格配置方式而配置著。規則的柵格配置因此可使整 個面達成一種均勻的照明。 爲了達成均句的背光照明，則本發明的另一種有利的賓 施形式是使該規則的柵格配置包含一組平坦的柵格結構形 式，這些形式包含六角形，菱形，矩形或平行四邊形。各 別的發光組分別位於相對應的柵格結構形式之角點上。 依據一特殊的形式，各發光組配置在至少一載體上。此 外，整個背光照明裝置可配置在一共同的載體上。然而， 各別的發光組或多個發光組亦可配置在相隔開的載體上。 : 依據另一有利的實施形式，以條形方式形成該載體。因 ； 此，各別的發光組或多個發光組可配置在條形的載體上。 背光照明裝置可藉由相鄰地配置多個條形的載體來形成。 例如，每二個相同造型之相鄰條片可相對於其發光組之主 輻射方向而互相旋轉180度。相鄰的條片可互相反向平行 地定位著。 1356242 酿祕日修正替換頁 ---修正本 本發明的另一有利之實施形式的計方式是：二個相鄰的 發光組分別以一預定的角度（特別是90度）相對於一種沿著 其主輻射方向之假想軸而互相旋轉。此外，此實施形式若 配置成一種直角形的柵格，則此背光照明裝置之每一發光 組在其本身之列和行之內部中可分別具有二個不同方位之 相鄰發光組。於是，可使不均勻的顏色混合之邊緣效應下 降。 本發明的另一有利之實施形式的計方式是：二個相鄰的 發光組分別以1 80度相對於一種沿著其主輻射方向之假想 軸而互相旋轉。此實施形式允許此背光照明裝置之設置較 簡單且同時有較佳的顏色混合作用。 此背光照明裝置的另一有利的實施形式之設計方式 是：以列的形式將各發光組以相同的方位施加在一種條形 的載體上且在構成此背光照明裝置時將各發光組條片相鄰 地配置著，其中二個相同形式之相鄰的發光組條片分別反 平行地定位著。 本發明的另一有利之實施形式的計方式是：各發光組配 置在一載體上’載體由一電路板來形成。特別是具有良好 之導熱性的金屬核心電路板適合用作此電路板。 此背光照明裝置的另一有利的實施形式之設計方式 是：此背光照明裝置的具有相同之發射光譜的半導體光源 可分別地受到控制。於是，在顯示時可產生各種色調效應， 特別是此背光照明裝置與一種平面螢幕一起使用時更是如 此。 -10- 1356242 _祕日修正替換頁 --J 修正本 此背光照明裝置的另一有利的實施形式之設計方式 是：各別的發光組之半導體光源可各別地受到控制。因此， 在各別的半導體光源失效時，可藉由適當的電子式調整過 程使不期望的非均勻的顏色效應下降或消除。 本發明的發光裝置具有·一種如上所述的背光照明裝置 和一種光學元件。本發明的發光裝置中可有利地達成一種 最佳化的顏色均勻性。 適當的方式是將該光學元件相對於該背光照明裝置而 配置著，使由該背光照明裝置所發出之光透過該光學元件。 依據一較佳的形式，此發光裝置是一種顯示裝置。於 此，該光學元件具有各種發出資訊用的特性.時特別有利。 此光學元件特別是可爲一種液晶顯示器。 依據另一種形式，該發光裝置是一種照明裝置。此時此 光學元件可具有光混合特性或光對準特性。 例如，漫射器特別適合用作上述具有光混合特性的光學 元件。現有的漫射器之特徵是其具有至少一散射用的可粗 糙化的光通過面或具有一散射用的體積區，其例如以散射 微粒來進行設定。 此外，可使用一種增亮膜（特別是稜鏡膜）來作爲該具有 光對準特性的光學元件。增亮膜例如可具有各種以透鏡形 式配置而成的稜鏡結構。這樣可使由下側射入至該箔中的 光之一部份透過且一部份被反射。該光之已透過的部份限 制於一種較小的開口角度上。增亮膜基本上是一種濾波 器，其使光在一種圍繞主輻射方向之狹窄角度中透過且使 -11- 1356242 修正本 你^月A日修正替換頁 其餘的輻射被反射。 本發明的其它優點，較佳的實施形式以下將依據第1至 5圖之實施例來描述。 【實施方式】 各實施例和圖式中相同-或作用相同之元件分別設有相 同的參考符號。 各圖式中的背光照明裝置只表示其本質。各圖式的元件 因此未與實際的情況相對應而是只以符號來顯示，以便使 各配置的作用方式更容易爲人所了解。 第1圖之背光照明裝置1中未具有-或只具有一種較小的 干擾性顏色邊緣。邊緣23之垂直的虛線分別交替地面對著 著一種發出紅光的半導體組件22c，發出綠光的半導體組 件22b和發出藍光的半導體組件22a。這些交替的顏色序 列之情況如下：分別有二個相鄰-且造型相同之發光組2 1 a， 21b互相對其主輻射方向旋轉180度而配置著，發光組21a, 21b分別具有發出紅光的半導體組件22c，發出綠光的半導 體組件22b和發出藍光的半導體組件22a。 第2圖是本發明中背光照明裝置之第二實施形式。本實 施形式中一發光組分別具有一發出輻射之半導體組件，其 包括三個發出輻射的半導體光源，其在本實施例中分別是 發出紅光的半導體晶片42c，發出綠光的半導體晶片42b 和發出藍光的半導體晶片42a。須配置各發光組，使矩形 柵格配置之一行的各發光組分別具有相同的方位。然而， 相鄰的行之各發光組41a，41b相對於一種與主輻射方向相 1356242 _ ί游&脱曰修正替換頁 • 平行的假想軸而言分別相對於每一相鄰的行旋轉1 8 0 配置著。即’發光組每第二個行是與其相鄰之行成反 行而配置著。因此，可使整個面上的顏色均勻性獲得己: 本發明的各發光組當然不只限於上述之多晶片封裝而 插全部之發出輻射之半導體組件的各種配置形式。 ' 背光照明裝置1之以鋸齒形虛線顯示的邊緣43指 • 發明的實施形式不限於1 6個發光組而是依據應用情 在任一方向中擴大至其它的發光組。就像第1圖一樣 導體光源之一種交替之顏色序列發生在背光照明裝置 水平的邊緣上。 第3圖顯不第二背光照明裝置1。此種特殊的實施 中’發光組分別具有一種發出輻射的半導體組件，其 三個發出輻射的半導體晶片，其在本實施例中分別是 紅光的半導體晶片52c，發出綠光的半導體晶片52b 出藍光的半導體晶片52a。即，一列及/或一行之四個 配置的發光組51a，51b, 51c, 51d未具備相同的方位 是，不只此背光照明裝置1之邊緣53上之顏色不均勻 且此背光照明裝置1之整個面積上的顏色不均勻性都 • 小化。然而，本發明的各實施形式不是只要求下降至 ； 之180度或90度。此配置中的各種變化情況在需要時 取每一種對發光組之發射方向來旋轉時之旋轉角度 而’較佳‘是使依序之各發光組之旋轉角度均勻地變化 3圖所，示的配置中，每一發光組最多具有二個相鄰的 相同的發光組。 修正本 度而 向平 交良。 是包 出本 況可 ，半 1之 形式 包含 發出 和發 依度 。於 性而 可最 上述 可採 。然 。第 方位 -13- 1356242 _ 月日修正替換頁 - _I 修正本 • 背光照明裝置1之据齒形虛線所不的邊緣53指出：此 . 實施形式不限於16個發光組而是可依據應用情況以在任 意方向中擴大至其它發光組。就像第1圖一樣，在背光照 明裝置1之水平和垂直邊緣53上半導體光源之顏色序列交 替地變化。就本發明之全部的其它實施形式而言，所使用 * 的發光組不限於多晶片封裝者。特別是發光組亦可由多個 ： 各別的半導體光源（例如，LEDs)所組成。此外，各發光組 不限於三組半導體光源所形成的配置，各發光組亦可包含 任意數目的半導體光源。本發明的發光組之發射光譜不限 於紅，綠，藍等顔色而是可包含全部的顏色。 第4圖中顯示另一有利的實施形式，其中各發光組之方 位基本上對應於第3圖中者。發出藍光之半導體晶片62a， 發出綠光之半導體晶片62b，發出紅光之半導體晶片62c 以多晶片封裝的形式組合成發光組6 1 a，6 1 b，6 1 c。第3，4 圖之背光照明裝置1主要不同點是：背光照明裝置1之二 個相鄰的行分別垂直地互相偏移。因此形成一種背光照明 裝置1，其發光組配置成六角形的柵格形式。這樣可達成 較大的亮度且同時可使顏色均勻度獲得改良。 ' ’ 就第4圖之背光照明裝置1之鋸齒形虛線所示的邊緣63 : 而言，第3圖之實施形式之相關說明亦適用。 然而，本發明之背光照明裝置不只限於六角形或直角形 之柵格形式，亦可包含菱形或平行四邊形之柵格結構。所 謂栅格形式的發光組主要是指各種配置，其中各發光組位 於規則之柵格之柵格點上。 -14- 1356242 修正本 月ίέ曰修正替換頁 在本發明的另一實施形式中，半導體光源及/或各別的發 光組配置可藉由一控制器而各別地進行控制。於是，可藉 由亮度的調整使特定的顯示區中的對比提高。此外，藉由 具有相同發射光譜之各別的半導體光源之亮度的改變，則 背光照明裝置之發射光譜的色調可改變。在各別的光源失 效時，由於失效所造成的發射光譜的變化可被修正。 第6圖所示的發光裝置11例如具有后第2圖所示的背 光照明裝置1和一光學元件10。 背光照明裝置1包含多個半導體光源42 a，42b，其配置 在一載體12上。此載體12例如可以是一種電路板。藍色 的半導體光源42a和綠色的半導體光源42b是發光組41b 之成份。 發光組41b配置在載體12上，使所發出的光可透過該 光學元件1 〇。 在上述情況下，發光裝置11是一種顯示裝置，其中該 光學元件10是一種LCD且具有發出資訊的特性。 在第一基板1 3 a和第二基板1 3 b之間配置一種液晶1 4， 其中爲了顯示資訊須施加一種電場至此液晶1 4上。 第7圖顯示一種發光裝置11’其具有背光照明裝置1和 一光學元件10，其中此發光裝置11用作照明裝置。此光 學元件10具有使光混合或使光對準之特性。此光學元件 10較佳是一種具有適當結構之增亮膜，其例如具有—種稜 鏡陣列或一種由反轉式（inverse)複合型拋物面聚光器 (CPCs)所構成的陣列。 1356242 本發明當然不限於依據各 本 發 明 包 含 每 一 新 的 特 徵 和 各 包 含 各 串 請 專 利 1範 !圍 1 -： 或: 不 同 組 合 當 相 關 的 特 徵 或 相 關 的 甲 請 專 利 範 圍 中 或 各 實 施 例 中 [ 圖 式 簡 單 說 明 ] 第 1 圖 本 發 明 中 第 一 背 光 第 2 圖 本 發 明 中 第 二 背 光 第 3 圖 本 發 明 中 第 三 背 光 第 4 圖 本 發 明 中 第 四 背 光 第 5 圖 對 — 面 積 進 行 背 光 之 圖 解 〇 第 6 圖 本 發 明 的 發 光 裝 置 第 7 圖 本 發 明 的 發 光 裝 置 [ 主 要 元 件 符 號 說 明 1 背 光 照 明 裝 置 2.c 紅 色 半 導 體 光 源 2d 紅 色 半 導 體 光 源 2e 紅 色 半 導 體 光 源 3 ''息 透 緣 10 光 學 元 件 11 發 光 裝 置 12 載 體 13 a 第 一 基 板 购月姆正替換頁 ------1 修正本 施例中所作的描述。反之， 特徵的每一種組合，特別是 實施例之各別特徵之每一種 組合本身未明顯地顯示在各 時亦同。 照明裝置之圖解。 照明裝置之實施形式。 照明裝置之實施形式》 照明裝置之實施形式。 照明用的上述背光照明裝置 之第一實施例之切面圖。 之第二實施例之切面圖。 -16- •月冶曰修正替換頁 修正本 第二基板 液晶 發光組 發光組 藍色半導體光源 綠色半導體光源 紅色半導體光源 邊緣 發光組 發光組 藍色半導體光源 綠色半導體光源 紅色半導體光源 邊緣 發光組 發光組 藍色半導體光源 綠色半導體光源 紅色半導體光源 邊緣 發光組 發光組 發光組 發光組 -17- 1356242 喊》月冶日修正替換頁 修正本 52a 監 色 半 導 體 光 源 5 2b 綠 色 半 導 體 光 源 5 2c 紅 色 半 導 體 光 源 5 3 邊 緣 6 1a 發 光 組 6 1b 發 光 組 6 1c 發 光 組 62a 藍 色 半 導 體 光 源 62b 綠 色 半 導 體 光 源 62c 紅 色 半 導 體 光 源 63 邊 緣 -18-1356242 _ 脱 改 改 改 改 改 改 改 改 改 改 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 Further, the present invention relates to a light-emitting device having the above-described backlight illumination device. * The present application claims the priority of the German Patent Application No. 10 2005 042 066.4-54, the entire disclosure of which is hereby incorporated by reference. The plane is illuminated, and the various planes can be, for example, a liquid crystal display (LCD). The illuminating tube mainly emits white light, but requires a large space and current. In recent years, it has become more important to use semiconductor light sources when backlighting LCD- or TFT-screens. Here, a surface needs to be uniformly illuminated by a semiconductor light source. In terms of a uniform color reproduction on the illuminated screen, the light emitted by the different color semiconductor sources requires a uniform color mixing effect. The individual radiation of the semiconductor light source requires a uniform color mixing effect only when semiconductor light sources of different colors are used. This uniform color mixing can be achieved by separating the individual light sources from the area to be backlighted; the area is separated by a large distance. In addition, a variety of materials for diffusion can be applied between the area to be backlighted and the respective light sources. Of course, an increase in distance can result in an undesirably large construction height. The diffuser disposed between the area to be backlighted and the respective light sources typically causes a large loss in luminous power. The total efficiency of such backlighting and 1356242 _ call? Month % Day Correction Replacement Page -_ __I Amendment • Its usability is therefore affected. The total efficiency of back-illumination here refers to the ratio of the luminous power to the energy consumed. A backlight illumination device having a semiconductor light source has been disclosed in WO 2004/031844 A1. A plurality of semiconductor light sources of different colors in the file are combined into a plurality of light-emitting groups and the light-emitting groups are arranged in the same 'azimuth direction in a right-angled mesh. When using this light source configuration, it is not easy to produce a uniform mixed color. Since the orientations of the groups are the same, the area inside the area to be backlighted (mainly on the edge) has significant color difference. The color mixing of the group of semiconductor light sources is additionally affected by the fact that the individual semiconductor light sources have different preferential directions when emitting. A similar situation occurs when a multi-chip package is used, i.e., a similar situation occurs when the light-emitting diode unit used contains a plurality of semiconductor wafers of different colors. Fig. 5 is a detailed view of the backlight unit 1. The dotted line indicates the edge 3 of this backlight illumination device 1. Here, four illumination groups are arranged on one of the edges shown. The individual illumination groups are constructed in the same manner. Each illuminating group is in particular a semiconductor wafer comprising three different emission spectra, which are arranged in the same form. Each wafer in this example is associated with a multi-chip package; as it is sold by Osram under the name Multitopled. The illumination group of the present invention is of course not limited to the multi-wafer package described above but includes various configurations of all of the radiation-emitting semiconductor components. In most backlighting devices, the same-or the same form of the lighting group is arranged on the strip-shaped circuit board in the same orientation." Flat-type backlighting 1356242. Please correct the replacement page on the 6th. The circuit board is composed of. In a rectangular grid configuration, the same type of lighting groups are arranged in the same orientation. In this case, a light-emitting group contains a radiation-emitting semiconductor component comprising three radiation-emitting semiconductor wafers, that is, emitting blue light (B)-, emitting green light (G)-, emitting red light (R) Semiconductor wafers 32a, 32b, 3 2c. Since the adjacent light-emitting groups 31a, 31b respectively have the same orientation and the respective semiconductor light sources of a light-emitting group have respective preferential directions in the emission direction, the respective spectra of the semiconductor light sources can only be conditionally achieved. A uniform color mixing effect. According to Fig. 5, adjacent light-emitting groups 31a, 31b have the same orientation. In this embodiment, only the red-emitting semiconductor components 2c, 2d, 2e are adjacent to each other along the vertical dashed line. These edges of the backlighting area thus cause uneven color effects. SUMMARY OF THE INVENTION It is an object of the invention to improve color mixing in a cost-effective manner in a backlight or illumination device. This object is achieved by the backlighting device or the illuminating device of claim 1 or 18. The backlight illumination device of the present invention is substantially a backlight illumination group comprising a plurality of illumination groups of the same type, wherein each illumination group has at least one adjacent illumination group with different orientations. The design of the present invention is to combine different semiconductor light sources into the same type of illumination group. For example, these light sources can be red, green and blue (RGB)-light sources. Each of the illuminating groups may of course have different other colors. The same form should be configured. 1356242 The same as the illuminating group, the non-phase unphased configuration of the illuminating group is semi-equal. The same difference is issued by at least the _ secret day correction replacement page of the illumination group, so that an area is evenly illuminated. Each of the light-emitting groups is configured in the same form. That is, each illumination group has the same semiconductor light source configured. Therefore, the special edge effects of uneven color mixing do not occur, and each of the same configurations has at least one adjacent different illumination group. If the imaginary path between the centers of the two illuminating groups is neither in contact with the envelope of any of the third illuminating groups of the backlight device, the two illuminating modules of the backlighting device are adjacent. In the case where the distance between the corresponding semiconductor light centers of the adjacent light-emitting groups of the same form is the same as the distance between the centers of the adjacent light-emitting groups, one light-emitting group must be set relative to the other light-emitting group. Together with the orientation. For example, a different orientation can be achieved by "adjacent illuminations rotating relative to each other for their primary radiation direction." Each of the illumination groups of the backlight illumination device of the present invention has a plurality of semiconductor light sources formed in the same manner. The semiconductor light source may be, for example, a conductor wafer, an organic light emitting polymer, individual LEDs or OLEDs. The light emitting group of the present invention may also be formed by combining a plurality of LEDs into a common light emitting group. According to a preferred embodiment, the at least two semiconductor light sources provide a color. According to a further preferred embodiment, each illumination group has at least one red-light semiconductor light source, at least one green-emitting semiconductor light source and a blue-emitting semiconductor light source. In a semiconductor wafer for use as a semiconductor light source, the light-emitting group may be a separate semiconductor chip, which emits radiation, each of which may have a plurality of semiconductor wafers. In particular, each of the illumination groups can be a so-called "multi-chip-LED-package". Each of the illumination groups is an LED assembly that includes a plurality of semiconductor wafers. Semiconductor wafers can have different emission spectra, such as red, green, blue, etc. Multi-chip-package examples have been sold in large quantities by Osram under the trade name '6-lead Multitopleds. Each package has, for example, three semiconductor wafers having red, green, and blue emission spectra and six electrical contact regions, respectively. Another embodiment of the present invention is designed such that each of the light-emitting groups is arranged in a regular grid arrangement. The regular grid configuration thus achieves a uniform illumination across the entire surface. In order to achieve backlighting of the sentence, another advantageous form of the invention is to have the regular grid configuration comprising a set of flat grid structures comprising hexagons, diamonds, rectangles or parallelograms. The individual illumination groups are respectively located at the corners of the corresponding grid structure. According to a particular form, each illumination group is arranged on at least one carrier. In addition, the entire backlight unit can be placed on a common carrier. However, the individual illuminating groups or the plurality of illuminating groups may also be arranged on spaced apart carriers. According to a further advantageous embodiment, the carrier is formed in a strip form. Therefore, the respective light-emitting groups or the plurality of light-emitting groups may be disposed on the strip-shaped carrier. The backlight illumination device can be formed by arranging a plurality of strip-shaped carriers adjacently. For example, each of two adjacent strips of the same shape can be rotated 180 degrees relative to each other with respect to the main radiation direction of their illumination group. Adjacent strips can be positioned in anti-parallel to each other. 1356242 Brewing day correction replacement page---correction of another advantageous embodiment of the invention is that two adjacent illumination groups are respectively at a predetermined angle (especially 90 degrees) relative to a type along The imaginary axes of the main radiation directions rotate with each other. In addition, if the embodiment is configured as a rectangular grid, each of the illumination units of the backlight unit can have two adjacent illumination groups in different positions in its own column and in the interior of the row. Thus, the edge effect of uneven color mixing can be lowered. A further advantageous embodiment of the invention is characterized in that two adjacent groups of illuminations are mutually rotated at 180 degrees with respect to an imaginary axis along their main radiation direction. This embodiment allows for a simpler and at the same time better color mixing of the backlighting device. A further advantageous embodiment of the backlight illumination device is designed in such a way that the individual illumination groups are applied in the same orientation on a strip-shaped carrier in the form of a column and the individual illumination strips are formed when the backlight illumination device is formed. Adjacently disposed, two adjacent light-emitting strips of the same form are respectively positioned in anti-parallel. A further advantageous embodiment of the invention is that the illumination groups are arranged on a carrier. The carrier is formed by a circuit board. In particular, a metal core circuit board having good thermal conductivity is suitable for use as this circuit board. A further advantageous embodiment of the backlight unit is designed in such a way that the semiconductor light sources of the backlight unit having the same emission spectrum are separately controllable. Thus, various tonal effects can be produced during display, especially when the backlighting device is used with a flat screen. -10- 1356242 _ Secret-day correction replacement page --J A further advantageous embodiment of the backlight illumination device is designed in such a way that the individual light sources of the individual illumination groups can be individually controlled. Thus, when individual semiconductor light sources fail, undesirable non-uniform color effects can be reduced or eliminated by appropriate electronic adjustment processes. The light-emitting device of the present invention has a backlight device as described above and an optical element. An optimized color uniformity can be advantageously achieved in the illumination device of the present invention. Suitably, the optical element is disposed relative to the backlight illumination device such that light emitted by the backlight illumination device passes through the optical element. According to a preferred form, the illumination device is a display device. Therefore, it is particularly advantageous when the optical element has various characteristics for emitting information. This optical component can in particular be a liquid crystal display. According to another form, the illumination device is a illumination device. At this time, the optical element can have a light mixing property or a light alignment property. For example, a diffuser is particularly suitable for use as the above optical element having light mixing characteristics. A prior art diffuser is characterized in that it has at least one diffusible light-passing surface for scattering or has a volume region for scattering, which is set, for example, by scattering particles. Further, a brightness enhancing film (particularly a ruthenium film) can be used as the optical element having light alignment characteristics. The brightness enhancing film may have, for example, various enamel structures arranged in a lens form. This allows a portion of the light incident into the foil from the underside to pass through and a portion to be reflected. The transmitted portion of the light is limited to a smaller opening angle. The brightness enhancement film is basically a filter that transmits light in a narrow angle around the direction of the main radiation and causes the -11-1356242 to be corrected. The rest of the radiation is reflected. Other advantages of the invention, preferred embodiments will be described below in accordance with the embodiments of Figures 1 to 5. [Embodiment] The same or similar elements in the respective embodiments and the drawings are respectively provided with the same reference symbols. The backlighting device in each of the figures represents only its essence. The elements of the various figures therefore do not correspond to the actual situation but are only indicated by symbols in order to make the configuration of the various configurations easier to understand. The backlight unit 1 of Fig. 1 does not have - or only has a small interfering color edge. The vertical dashed lines of the edges 23 alternately face each other with a red-emitting semiconductor component 22c, a green-emitting semiconductor component 22b, and a blue-emitting semiconductor component 22a. The case of these alternating color sequences is as follows: two adjacent light-emitting groups 2 1 a, 21b are arranged to rotate 180 degrees with respect to their main radiation directions, and the light-emitting groups 21a, 21b respectively emit red light. The semiconductor component 22c emits a green light semiconductor component 22b and a blue light emitting semiconductor component 22a. Fig. 2 is a second embodiment of the backlight illumination device of the present invention. In the present embodiment, each of the light-emitting groups has a radiation-emitting semiconductor component comprising three radiation-emitting semiconductor light sources, which in this embodiment are respectively a red-emitting semiconductor wafer 42c, a green-emitting semiconductor wafer 42b, and A blue light semiconductor wafer 42a is emitted. Each lighting group must be configured such that each lighting group in one row of the rectangular grid configuration has the same orientation. However, the respective light-emitting groups 41a, 41b of the adjacent rows are rotated relative to each adjacent row with respect to an imaginary axis parallel to the main radiation direction of the 1362402 _ ί & 曰 替换 替换8 0 is configured. That is, every second line of the 'light-emitting group is arranged in opposition to its adjacent line. Therefore, the color uniformity of the entire surface can be obtained: The respective light-emitting groups of the present invention are of course not limited to the above-described multi-chip package and various configurations of the radiation-emitting semiconductor components are inserted. The edge 43 of the backlight illumination device 1 shown by a zigzag-shaped dotted line means that the embodiment of the invention is not limited to 16 illumination groups but is expanded to other illumination groups in either direction depending on the application. As in Figure 1, an alternating sequence of colors of the conductor source occurs on the horizontal edge of the backlight. The third figure shows the second backlight illumination device 1. In this particular implementation, the 'light-emitting groups respectively have a radiation-emitting semiconductor component, three radiation-emitting semiconductor wafers, which in this embodiment are red-light semiconductor wafers 52c, respectively, and green-emitting semiconductor wafers 52b. Blue light semiconductor wafer 52a. That is, the four groups of light-emitting groups 51a, 51b, 51c, 51d of one column and/or one row do not have the same orientation, and not only the color on the edge 53 of the backlight device 1 is uneven, and the entire backlight device 1 is The color unevenness on the area is small. However, embodiments of the invention are not only required to be lowered to 180 degrees or 90 degrees. The various changes in this configuration take the rotation angle of each of the illumination groups in the direction of rotation when needed, and the 'better' is to uniformly change the rotation angle of each of the illumination groups in sequence. In the configuration, each lighting group has at most two adjacent identical lighting groups. Correct the degree and make good relations. It is the case that the package can be used. The form of the half 1 includes the issue and the degree of the issue. For sex, the most can be used. Of course. Azimuth-13- 1356242 _ Month Day Correction Replacement Page - _I Amendment • The edge 53 of the backlight unit 1 according to the dotted line indicates that: this embodiment is not limited to 16 illumination groups but can be used depending on the application. Expand to other lighting groups in any direction. As in Fig. 1, the color sequence of the semiconductor light source alternately changes on the horizontal and vertical edges 53 of the backlight illumination device 1. For all other embodiments of the invention, the illumination group used * is not limited to multi-chip packagers. In particular, the illumination group can also be composed of a plurality of individual semiconductor light sources (for example, LEDs). Further, each of the light-emitting groups is not limited to the configuration formed by the three sets of semiconductor light sources, and each of the light-emitting groups may include any number of semiconductor light sources. The emission spectrum of the light-emitting group of the present invention is not limited to red, green, blue or the like but may include all colors. A further advantageous embodiment is shown in Fig. 4, in which the orientation of each illumination group substantially corresponds to that of Fig. 3. The blue-emitting semiconductor wafer 62a emits a green-light semiconductor wafer 62b, and the red-emitting semiconductor wafer 62c is combined into a light-emitting group 6 1 a, 6 1 b, 6 1 c in the form of a multi-chip package. The main difference of the backlight unit 1 of Figs. 3 and 4 is that two adjacent lines of the backlight unit 1 are vertically offset from each other. Thus, a backlight illumination device 1 is formed, the illumination group of which is arranged in the form of a hexagonal grid. This achieves greater brightness while at the same time improving color uniformity. With regard to the edge 63 shown by the zigzag line of the backlight unit 1 of Fig. 4, the description of the embodiment of Fig. 3 also applies. However, the backlight illumination device of the present invention is not limited to a hexagonal or rectangular grid form, and may also include a rhombic or parallelogram grid structure. The illuminating group in the form of a grid mainly refers to various configurations in which each illuminating group is located on a grid point of a regular grid. -14- 1356242 Revision This Month έ曰 Correction Replacement Page In another embodiment of the invention, the semiconductor light source and/or the respective illuminating group configuration can be individually controlled by a controller. Thus, the contrast in a particular display area can be increased by the adjustment of the brightness. Moreover, the hue of the emission spectrum of the backlight illumination device can be varied by the change in brightness of the respective semiconductor light sources having the same emission spectrum. When the respective light source fails, the change in the emission spectrum due to the failure can be corrected. The light-emitting device 11 shown in Fig. 6 has, for example, a backlight illumination device 1 and an optical element 10 shown in Fig. 2 . The backlight unit 1 comprises a plurality of semiconductor light sources 42a, 42b disposed on a carrier 12. This carrier 12 can be, for example, a circuit board. The blue semiconductor light source 42a and the green semiconductor light source 42b are components of the light-emitting group 41b. The light-emitting group 41b is disposed on the carrier 12 so that the emitted light can pass through the optical element 1 〇. In the above case, the light-emitting device 11 is a display device in which the optical element 10 is an LCD and has a characteristic of emitting information. A liquid crystal 1 4 is disposed between the first substrate 1 3 a and the second substrate 1 3 b, wherein an electric field is applied to the liquid crystal 14 in order to display information. Fig. 7 shows a light-emitting device 11' having a backlight illumination device 1 and an optical element 10, wherein the illumination device 11 functions as a illumination device. This optical element 10 has the property of mixing or aligning light. The optical element 10 is preferably a brightness enhancing film of suitable construction having, for example, an array of prisms or an array of inverse composite parabolic concentrators (CPCs). 1356242 The invention is of course not limited to the inclusion of each new feature in accordance with the invention and each of the various types of patents included in the invention. 1 -: or: different combinations when related features or related patent claims or embodiments [Simplified illustration of the drawing] FIG. 1 is a first backlight in the present invention. FIG. 2 is a second backlight in the present invention. FIG. 3 is a third backlight in the present invention. FIG. 4 is a fourth backlight in the present invention. FIG. Illustrated diagram of backlight 〇 FIG. 6 illuminating device of the present invention FIG. 7 illuminating device of the present invention [ main component symbol description 1 backlight illuminating device 2. c red semiconductor light source 2d red semiconductor light source 2e red semiconductor light source 3 '' permeable edge 10 Optical element 11 Light-emitting device 12 Carrier 13 a First substrate purchase monthly replacement page ------1 Correction in this example description of. Conversely, each combination of features, particularly each of the individual features of the embodiments, is not explicitly shown to be the same at all times. Illustration of the lighting device. An embodiment of a lighting device. Embodiment of the lighting device" Embodiment of the lighting device. A cutaway view of a first embodiment of the above backlighting device for illumination. A cutaway view of a second embodiment. -16- • 曰 曰 曰 correction replacement page correction this second substrate liquid crystal illuminating group illuminating group blue semiconductor light source green semiconductor light source red semiconductor light source edge illuminating group illuminating group blue semiconductor light source green semiconductor light source red semiconductor light source edge illuminating group illuminating group Blue semiconductor light source green semiconductor light source red semiconductor light source edge light-emitting group light-emitting group light-emitting group light-emitting group -17- 1356242 shouting "Yueye day correction replacement page correction book 52a color semiconductor light source 5 2b green semiconductor light source 5 2c red semiconductor light source 5 3 Edge 6 1a illuminating group 6 1b illuminating group 6 1c illuminating group 62a blue semiconductor light source 62b green semiconductor light source 62c red semiconductor light source 63 edge -18-